Putter head



FIG. 1 is a perspective view;

FIG. 2 is a top view;

FIG. 3 is a front view;

FIG. 4 is a bottom view;

FIG. 5 is a back view; and,

FIG. 6 is an end view.

The broken line showing of a fragmented shaft on FIG. 1 is forillustrative purposes only and forms no part of the claimed design.

The ornamental design for a putter head, as shown and described.